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Add: basic framebuffer write call

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xamidev
2024-05-19 14:31:10 +02:00
parent 566860c6ea
commit 5cd61cf95c
11 changed files with 82 additions and 67 deletions
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114
bochslog.txt
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@@ -44,45 +44,45 @@
00000000000i[USBCTL] Pluggable USB devices
00000000000i[USBCTL] mouse tablet keypad keyboard floppy disk cdrom printer
00000000000i[USBCTL] hub
00000000000i[MEM0 ] allocated memory at 0x7f1f95ddd010. after alignment, vector=0x7f1f95dde000
00000000000i[MEM0 ] allocated memory at 0x7fb5595dc010. after alignment, vector=0x7fb5595dd000
00000000000i[MEM0 ] 32.00MB
00000000000i[MEM0 ] mem block size = 0x00020000, blocks=256
00000000000i[MEM0 ] rom at 0xffff0000/65536 ('/usr/share/bochs/BIOS-bochs-legacy')
00000000000i[CPU0 ] WARNING: 3DNow! is not implemented yet !
00000000000i[DEV ] will paste characters every 100 iodev timer ticks
00000000000i[ ] lt_dlhandle is 0x55a4d7248350
00000000000i[ ] lt_dlhandle is 0x55fee5417090
00000000000i[PLUGIN] loaded plugin libbx_soundalsa.so
00000000000i[WAVOUT] ALSA: opened default PCM output device
00000000000i[WAVOUT] changed sample rate to 44101
00000000000i[ ] lt_dlhandle is 0x55a4d79fe0f0
00000000000i[ ] lt_dlhandle is 0x55fee5bcce70
00000000000i[PLUGIN] loaded plugin libbx_pci.so
00000000000i[ ] lt_dlhandle is 0x55a4d7248430
00000000000i[ ] lt_dlhandle is 0x55fee5417170
00000000000i[PLUGIN] loaded plugin libbx_pci2isa.so
00000000000i[ ] lt_dlhandle is 0x55a4d71c65f0
00000000000i[ ] lt_dlhandle is 0x55fee5394f80
00000000000i[PLUGIN] loaded plugin libbx_usb_uhci.so
00000000000i[ ] lt_dlhandle is 0x55a4d72628f0
00000000000i[ ] lt_dlhandle is 0x55fee5431120
00000000000i[PLUGIN] loaded plugin libbx_acpi.so
00000000000i[ ] lt_dlhandle is 0x55a4d71c59f0
00000000000i[ ] lt_dlhandle is 0x55fee5394380
00000000000i[PLUGIN] loaded plugin libbx_hpet.so
00000000000i[ ] lt_dlhandle is 0x55a4d7a088a0
00000000000i[ ] lt_dlhandle is 0x55fee5bd7620
00000000000i[PLUGIN] loaded plugin libbx_cmos.so
00000000000i[ ] lt_dlhandle is 0x55a4d7a090b0
00000000000i[ ] lt_dlhandle is 0x55fee5bd7e30
00000000000i[PLUGIN] loaded plugin libbx_dma.so
00000000000i[ ] lt_dlhandle is 0x55a4d7a09a20
00000000000i[ ] lt_dlhandle is 0x55fee5bd8640
00000000000i[PLUGIN] loaded plugin libbx_pic.so
00000000000i[ ] lt_dlhandle is 0x55a4d7a0a1e0
00000000000i[ ] lt_dlhandle is 0x55fee5bd8e00
00000000000i[PLUGIN] loaded plugin libbx_pit.so
00000000000i[ ] lt_dlhandle is 0x55a4d7a0ac00
00000000000i[ ] lt_dlhandle is 0x55fee5bd9820
00000000000i[PLUGIN] loaded plugin libbx_vga.so
00000000000i[ ] lt_dlhandle is 0x55a4d7a2c240
00000000000i[ ] lt_dlhandle is 0x55fee5bfae60
00000000000i[PLUGIN] loaded plugin libbx_floppy.so
00000000000i[ ] lt_dlhandle is 0x55a4d7a2ca80
00000000000i[ ] lt_dlhandle is 0x55fee5bfb6a0
00000000000i[PLUGIN] loaded plugin libbx_ioapic.so
00000000000i[ ] lt_dlhandle is 0x55a4d7a2d290
00000000000i[ ] lt_dlhandle is 0x55fee5bfbeb0
00000000000i[PLUGIN] loaded plugin libbx_keyboard.so
00000000000i[ ] lt_dlhandle is 0x55a4d7a2db90
00000000000i[ ] lt_dlhandle is 0x55fee5bfc7b0
00000000000i[PLUGIN] loaded plugin libbx_harddrv.so
00000000000i[ ] lt_dlhandle is 0x55a4d7a2fc60
00000000000i[ ] lt_dlhandle is 0x55fee5bfe880
00000000000i[PLUGIN] loaded plugin libbx_pci_ide.so
00000000000i[PLUGIN] init_dev of 'pci' plugin device by virtual method
00000000000i[DEV ] i440FX PMC present at device 0, function 0
@@ -90,7 +90,7 @@
00000000000i[DEV ] PIIX3 PCI-to-ISA bridge present at device 1, function 0
00000000000i[PLUGIN] init_dev of 'cmos' plugin device by virtual method
00000000000i[CMOS ] Using local time for initial clock
00000000000i[CMOS ] Setting initial clock to: Sat May 18 22:03:59 2024 (time0=1716062639)
00000000000i[CMOS ] Setting initial clock to: Sun May 19 14:30:46 2024 (time0=1716121846)
00000000000i[PLUGIN] init_dev of 'dma' plugin device by virtual method
00000000000i[DMA ] channel 4 used by cascade
00000000000i[PLUGIN] init_dev of 'pic' plugin device by virtual method
@@ -234,42 +234,42 @@
00000000000i[PLUGIN] reset of 'usb_uhci' plugin device by virtual method
00000000000i[ ] set SIGINT handler to bx_debug_ctrlc_handler
00000004662i[BIOS ] $Revision: 14314 $ $Date: 2021-07-14 18:10:19 +0200 (Mi, 14. Jul 2021) $
00000317288i[KBD ] reset-disable command received
00000318445i[PIDE ] BAR #4: i/o base address = 0xc000
00000318672i[UHCI ] BAR #4: i/o base address = 0xc100
00000324507i[P2ISA ] PCI IRQ routing: PIRQD# set to 0x0b
00000324523i[P2ISA ] write: ELCR2 = 0x08
00000324543i[UHCI ] new IRQ line = 11
00000324608i[P2ISA ] PCI IRQ routing: PIRQA# set to 0x0a
00000324624i[P2ISA ] write: ELCR2 = 0x0c
00000324644i[ACPI ] new IRQ line = 10
00000442944i[VBIOS ] VGABios $Id: vgabios.c 288 2021-05-28 19:05:28Z vruppert $
00000443015i[BXVGA ] VBE known Display Interface b0c0
00000443047i[BXVGA ] VBE known Display Interface b0c5
00000445690i[VBIOS ] VBE Bios $Id: vbe.c 292 2021-06-03 12:24:22Z vruppert $
00004097860i[BIOS ] IDE time out
00808587967i[BIOS ] Booting from 07c0:0000
00808683351i[BIOS ] int13_harddisk: function 41, unmapped device for ELDL=80
00808687022i[BIOS ] int13_harddisk: function 08, unmapped device for ELDL=80
00808690693i[BIOS ] *** int 15h function AX=00c0, BX=0000 not yet supported!
01119585462i[ ] Ctrl-C detected in signal handler.
01119585463i[ ] dbg: Quit
01119585463i[CPU0 ] CPU is in protected mode (active)
01119585463i[CPU0 ] CS.mode = 32 bit
01119585463i[CPU0 ] SS.mode = 32 bit
01119585463i[CPU0 ] EFER = 0x00000000
01119585463i[CPU0 ] | EAX=0000002a EBX=0002cd80 ECX=00000008 EDX=00000028
01119585463i[CPU0 ] | ESP=00067ecc EBP=00067ee0 ESI=0002ced8 EDI=0002ced9
01119585463i[CPU0 ] | IOPL=0 id vip vif ac vm rf nt of df if tf sf zf af pf cf
01119585463i[CPU0 ] | SEG sltr(index|ti|rpl) base limit G D
01119585463i[CPU0 ] | CS:0008( 0001| 0| 0) 00000000 ffffffff 1 1
01119585463i[CPU0 ] | DS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
01119585463i[CPU0 ] | SS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
01119585463i[CPU0 ] | ES:0010( 0002| 0| 0) 00000000 ffffffff 1 1
01119585463i[CPU0 ] | FS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
01119585463i[CPU0 ] | GS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
01119585463i[CPU0 ] | EIP=00100147 (00100147)
01119585463i[CPU0 ] | CR0=0x60000011 CR2=0x00000000
01119585463i[CPU0 ] | CR3=0x00000000 CR4=0x00000000
01119585463i[CMOS ] Last time is 1716063758 (Sat May 18 22:22:38 2024)
01119585463i[SIM ] quit_sim called with exit code 0
00000317812i[KBD ] reset-disable command received
00000318931i[PIDE ] BAR #4: i/o base address = 0xc000
00000319158i[UHCI ] BAR #4: i/o base address = 0xc100
00000324993i[P2ISA ] PCI IRQ routing: PIRQD# set to 0x0b
00000325009i[P2ISA ] write: ELCR2 = 0x08
00000325029i[UHCI ] new IRQ line = 11
00000325094i[P2ISA ] PCI IRQ routing: PIRQA# set to 0x0a
00000325110i[P2ISA ] write: ELCR2 = 0x0c
00000325130i[ACPI ] new IRQ line = 10
00000443430i[VBIOS ] VGABios $Id: vgabios.c 288 2021-05-28 19:05:28Z vruppert $
00000443501i[BXVGA ] VBE known Display Interface b0c0
00000443533i[BXVGA ] VBE known Display Interface b0c5
00000446176i[VBIOS ] VBE Bios $Id: vbe.c 292 2021-06-03 12:24:22Z vruppert $
00004098346i[BIOS ] IDE time out
01047918503i[BIOS ] Booting from 07c0:0000
01048013887i[BIOS ] int13_harddisk: function 41, unmapped device for ELDL=80
01048017558i[BIOS ] int13_harddisk: function 08, unmapped device for ELDL=80
01048021229i[BIOS ] *** int 15h function AX=00c0, BX=0000 not yet supported!
01206143903i[ ] Ctrl-C detected in signal handler.
01206143904i[ ] dbg: Quit
01206143904i[CPU0 ] CPU is in protected mode (active)
01206143904i[CPU0 ] CS.mode = 32 bit
01206143904i[CPU0 ] SS.mode = 32 bit
01206143904i[CPU0 ] EFER = 0x00000000
01206143904i[CPU0 ] | EAX=0000002a EBX=0002cd80 ECX=00000008 EDX=001001a3
01206143904i[CPU0 ] | ESP=00067ecc EBP=00067ee0 ESI=0002ced8 EDI=0002ced9
01206143904i[CPU0 ] | IOPL=0 id vip vif ac vm rf nt of df if tf sf zf af pf cf
01206143904i[CPU0 ] | SEG sltr(index|ti|rpl) base limit G D
01206143904i[CPU0 ] | CS:0008( 0001| 0| 0) 00000000 ffffffff 1 1
01206143904i[CPU0 ] | DS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
01206143904i[CPU0 ] | SS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
01206143904i[CPU0 ] | ES:0010( 0002| 0| 0) 00000000 ffffffff 1 1
01206143904i[CPU0 ] | FS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
01206143904i[CPU0 ] | GS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
01206143904i[CPU0 ] | EIP=001001bf (001001bf)
01206143904i[CPU0 ] | CR0=0x60000011 CR2=0x00000000
01206143904i[CPU0 ] | CR3=0x00000000 CR4=0x00000000
01206143904i[CMOS ] Last time is 1716123052 (Sun May 19 14:50:52 2024)
01206143904i[SIM ] quit_sim called with exit code 0

BIN
iso/boot/kernel.elf
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kernel.elf
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2
kmain.c
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@@ -2,6 +2,6 @@
int kmain(int retvalue)
{
putchar(0, 'A', FB_GREEN, FB_DARK_GREY);
write("hello");
return retvalue;
}

6
link.ld
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@@ -10,11 +10,7 @@ SECTIONS {
.text ALIGN (0x1000) :
{
*(.text)
}
.rodata ALIGN (0x1000) :
{
*(.rodata*)
*(.rodata)
}
.data ALIGN (0x1000) :

2
makefile
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@@ -1,4 +1,4 @@
OBJECTS = loader.o kmain.o stdio.o io.o
OBJECTS = loader.o kmain.o stdio.o io.o string.o
CC = gcc
CFLAGS = -m32 -nostdlib -nostdinc -fno-builtin -fno-stack-protector -nostartfiles -nodefaultlibs -Wall -Wextra -c
LDFLAGS = -T link.ld -melf_i386

BIN
os.iso
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8
stdio.c
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@@ -1,5 +1,6 @@
#include "io.h"
#include "stdio.h"
#include "string.h"
char* fb = (char *) 0x000B8000;
@@ -17,7 +18,10 @@ void putchar(unsigned int i, char c, unsigned char fg, unsigned char bg)
fb [i+1] = ((fg & 0x0F) << 4 | (bg & 0x0F));
}
int write(char *buf, unsigned int len)
void write(char *buf)
{
return 42;
for (int i=0; i<strlen(buf); i++)
{
putchar(2*i, buf[i], FB_GREEN, FB_DARK_GREY);
}
}

2
stdio.h
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@@ -11,6 +11,6 @@
void move_cursor(unsigned short pos);
void putchar(unsigned int i, char c, unsigned char fg, unsigned char bg);
int write(char *buf, unsigned int len);
void write(char *buf);
#endif

9
string.c Normal file
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@@ -0,0 +1,9 @@
int strlen(char* str)
{
int len = 0;
while (*str++)
{
len++;
}
return len;
}

6
string.h Normal file
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@@ -0,0 +1,6 @@
#ifndef INCLUDE_STRING_H
#define INCLUDE_STRING_H
int strlen(char* str);
#endif